Surveying/Mapping/Ranging InstrumentsSurveying, mapping, and ranging instruments are specialized tools that are used to measure and record the properties of land, water, and other physical features. These instruments are commonly used in a variety of fields, including surveying, engineering, geography, and mapping. Surveying instruments include tools such as levels, theodolites, and total stations, which are used to measure angles and distances. Mapping instruments include tools such as GPS receivers, which are used to determine the precise location of a point on the earth's surface. Ranging instruments include tools such as sonar and radar, which are used to measure the distance to an object using sound or electromagnetic waves.